The rate of effusion of a particular gas was measured and found to be 26.0 mL/min. Under the same conditions, the rate of effusion of pure methane () gas is 47.8 mL/min. What is the molar mass of the unknown gas? Mass =  g/mol

Q: A sample of gas CH4 is observed to effuse through a pourous barrier in 7.53 minutes. Under the same…

A: The formula which relates time to effuse for a gas and molecular mass is shown below: Time for gas…

Q: A sample of nitrogen dioxide gas, NO₂, effuses from at container at a rate of 48.8 ml/min. At what…

A: According to Graham's law, at constant pressure and temperature, molecules or atoms with lower…

Q: Suppose the CO2 gas evolved by a certain chemical reaction taking place at 50.0°C is collected over…

A: Here it is assume that gas collected under atmospheric pressure and the gas behave ideally.  Then it…

Q: A gas of unknown identity diffuses at a rate of 86.4 mL/s in a diffusion apparatus in which carbon…

A: Answer: 70.04 g/mol

Q: The rate of effusion of a particular gas was measured and found to be 35.0 mL/min. Under the same…

A:

Q: A student weighed 0 .038 g ol magnesium to produce molecular hydrogen gas collected over water at…

A: First, the moles of magnesium is calculated from given mass.

Q: Calculate the density of nitrogen dioxide gas at 765 Torr and 20oC. (d=gL^-1)

A: The density of the gas and formula weight calculated in below by using ideal gas equation. PV = nRT…

Q: A gas of unknown identity diffuses at a rate of 99.0 mL/s in a diffusion apparatus in which carbon…

A: The relationship between rate of effusion of gas and its molar mass is given by Graham’s law as:…

Q: An unknown gas effuses at a rate 1.50 times the rate of COCl₂. What is the molar mass of the unknown…

A: To solve this problem we will use the concept of Graham’s Law .

Q: How can comparing the rates of effusion of gases X and Y allow the molar mass of Y to be calculated?…

A: Grahams’s Law of effusion states that the rate of effusion of a gas is inversely proportional to…

Q: The plot below shows the distribution of molecular velocities for two gases (A and B) at the same…

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Q: Match the characteristic of gases described below to the postulates of the kinetic molecular theory…

A: The characteristic "gases are highly compressible" is best explained by the kinetic molecular theory…

Q: 7. Consider the following gas data and use the two supplied graph papers (pp. 13 and 14) to make…

A: We are given the data of volume(mL) and the corresponding pressure (torr) values.

Q: Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the…

A:

Q: The rate of effusion of a particular gas was measured and found to be 25.2 mL/min. Under the same…

A: The rate of effusion of two gases can be compared by Graham's Law of Effusion. It tells that rate of…

Q: A gas of unknown identity diffuses at a rate of 87.0 mL/s in a diffusion apparatus in which carbon…

A: Graham's law of effusion states that the rate of diffusion of gas is inversely proportional to the…

Q: 19. An unknown gas effuses 1.66 times more rapidly than CO₂. What is the molar mass of the unknown…

A: Ideal gas equation is the equation which obeys gas laws under all condition of temperature and…

Q: At a certain temperature and pressure, the rate of effusion of N2 gas is 30.0 mL/minute. What is the…

A: According to Graham's law , the effusion rate of any gas is inversely proportional to the square…

Q: A sample of an unknown gas effuses in 13.7 min. An equal volume of H, in the same apparatus under…

A: We have to calculate the molar mass of an unknown gas.Given: time of effusion of unknown gas = 13.7…

Q: What is TEL ? For what purpose it is used

A: All chemical compounds can be classified as organic and inorganic compounds. Organic compounds are…

Q: If nitrogen gas and oxygen gas are combined in a tank, they will be at the same tem­ perature and…

A: In the kinetic theory of gas, we know the pressure is caused due to collision of the gas molecule on…

Q: (a) Place the following gases in order of increasing average molecular speed at 25°C: CO, SF6, H2S,…

A: The average molecular speed at 25°Cof CO, SF6, H2S, Cl2, and HI should be placed in increasing…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: Given in the question, Volume = 51.5 mL = 0.0515 L Temperature = 35.0 ℃ = 273 + 35 K = 308 K As in…

Q: the same barrier. The molar mass of the unknown gas is ____g/mol.

A: We have to find molar mass of the unknown gas

Q: a) 1.488×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 81.2 s. Under…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A sample of neon gas effuses through a pinhole at a rate of 0.49 mL/s. What will be the rate of…

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Q: The rate of effusion of  Ne gas through a porous barrier is observed to be 4.28 x 10^-4 mol/h.…

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A: T = 35oC = 308.15K  V = 80ml = 0.08L  We will consider the pressure to be 1atm  Molar mass of oxygen…

Q: An unknown compound (A) is decomposed according to the reaction given below. One of the gas…

A: Given: The final volume of the gas sample is 1565 mL. The pressure is 765 torr. The temperature is…

Q: metimes in lab we collect the gas formed by a chemical reaction over water (see sketch right). This…

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Q: What is the molar mass of the uranium fluoride?

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Q: 163. The total mass that the instrument can lift is the difference between the mass of air and the…

A: To solve this problem, we first need to determine the volume of the instrument.Diameter of the…

Q: A sample of SO2 gas is observed to effuse through a pourous barrier in 3.70 minutes. Under the same…

A: Given- Rate of effusion of SO2 gas = 3.70 min Rate of effusion of unknown gas = 1.66 min   To find-…

Q: Atmosphere of Mars On the surface of Mars, the average temperature is -50 °C and the atmospheric…

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: An unknown gas effuses at a rate 1.50 times the rate of COCI2. What is the molar mass of the unknown…

A:

Q: The rate of effusion of a particular gas was measured and found to be 24.0mL/min.  Under the same…

A:

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.